Barely 40 days before the U.S. Women’s Open, Ko spent three days and three rounds of golf on Pinehurst No. 2 to prepare for her third Open appearance – and first as a significant favorite. She chats about No. 2’s famed turtleback greens, and the prospect of attending a men’s professional tournament for the first time – the weekend of the U.S. Open Championship, one week before the Women’s Open.